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Naddika [18.5K]
3 years ago
5

You would like to conduct a survey and ask your web page visitors to indicate the computer operating systems that they use. Each

visitor could use more than one computer operating system. Select the form control that is best to use for this purpose.
2 . . check box
. . . radio button
. . . text box
. . . scrolling text box
Computers and Technology
1 answer:
satela [25.4K]3 years ago
7 0

Answer:

<em>A checkbox</em>

Explanation:

A checkbox <em>(check box, tick box, tick box) is an User interface widget that allows the user to choose a binary option.</em>

Like a choice between any of two potential options that are mutually exclusive.

For instance, on a simple yes / no question, the user may have to answer ' yes ' (checked) or ' no ' (not checked).

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Every call to a recursive function has its own code and its own set of ____ and local variables
777dan777 [17]

Answer: Parameters

Explanation:

Whenever a call to a recursive function is made, then the function has its own code and its own set of parameters with local variables. These parameters are within the scope of the recursive function. For example while finding the factorial of a number we are given the function with parameter such as int recursive(int n) where int n is a parameter passed into the function.

8 0
3 years ago
Why are wiki's not secure​
Nookie1986 [14]
Wikipedia is not a reliable source for citations elsewhere on Wikipedia. Because, as a user-generated source, it can be edited by anyone at any time, any information it contains at a particular time could be vandalism
7 0
2 years ago
Aaron bought a photo-editing software package for personal use. He makes two copies of the software, in case the original softwa
Korvikt [17]

Aaron's action is considered legal, as you are allowed to make a backup copy of a legal copy of a software, but it can only be used in case the original software is destroyed or unusable.

5 0
3 years ago
What is an 8086 microprocessor used for
Liula [17]
A sixteen bit microprocessor chip used in early IBM PCs. The Intel 8088 was a version with an eight-bit externaldata bus.

The Intel 8086 was based on the design of the Intel 8080 <span>and </span>Intel 8085 (it was source compatible with the 8080)with a similar register set, but was expanded to 16 bits. The Bus Interface Unit fed the instruction stream to theExecution Unit through a 6 byte prefetch queue, so fetch and execution were concurrent - a primitive form ofpipelining (8086 instructions varied from 1 to 4 bytes).

It featured four 16-bit general registers, which could also be accessed as eight 8-bit registers, and four 16-bit indexregisters (including the stack pointer). The data registers were often used implicitly by instructions, complicatingregister allocation for temporary values. It featured 64K 8-bit I/O (or 32K 16 bit) ports and fixed vectored interrupts.There were also four segment registers that could be set from index registers.

The segment registers allowed the CPU to access 1 meg of memory in an odd way. Rather than just supplyingmissing bytes, as most segmented processors, the 8086 actually shifted the segment registers left 4 bits and addedit to the address. As a result, segments overlapped, and it was possible to have two pointers with the same valuepoint to two different memory locations, or two pointers with different values pointing to the same location. Mostpeople consider this a brain damaged design.

Although this was largely acceptable for assembly language, where control of the segments was complete (it couldeven be useful then), in higher level languages it caused constant confusion (e.g. near/far pointers). Even worse, thismade expanding the address space to more than 1 meg difficult. A later version, the Intel 80386, expanded thedesign to 32 bits, and "fixed" the segmentation, but required extra modes (suppressing the new features) forcompatibility, and retains the awkward architecture. In fact, with the right assembler, code written for the 8008 canstill be run on the most <span>recent </span>Intel 486.

The Intel 80386 added new op codes in a kludgy fashion similar to the Zilog Z80 and Zilog Z280. The Intel 486added full pipelines, and clock doubling (like <span>the </span>Zilog Z280).

So why did IBM chose the 8086 series when most of the alternatives were so much better? Apparently IBM's own engineers wanted to use the Motorola 68000, and it was used later in the forgotten IBM Instruments 9000 Laboratory Computer, but IBM already had rights to manufacture the 8086, in exchange for giving Intel the rights to its bubble memory<span> designs.</span> Apparently IBM was using 8086s in the IBM Displaywriter word processor.

Other factors were the 8-bit Intel 8088 version, which could use existing Intel 8085-type components, and allowed the computer to be based on a modified 8085 design. 68000 components were not widely available, though it could useMotorola 6800 components to an <span>extent.
</span>
Hope this helps
7 0
3 years ago
One lap around a standard high-school running track is exactly 0.25 miles. Write a program that takes a number of miles as input
salantis [7]

Answer:

import java.util.Scanner;

public class Miles {

public static void main(String[] args) {

   //initialization

       double Number_Miles;

       //print the message

       System.out.print("Enter the number of miles: ");

       Scanner scn1 = new Scanner(System.in);

       

       Number_Miles = scn1.nextDouble();  //read the input from user

       //calculate the laps

       double yourValue = Number_Miles/0.25;

       //display the output on the screen

       System.out.printf("%.2f", yourValue);

     

}

}  

Explanation:

First import the library Scanner than create the class and define the main function. In the main function, declare the variables.

print the message on the screen and then store the value enter by the user into the variable.

Scanner is a class that is used for reading the output. So, we make the object of the class Scanner and then object call the function nextDouble() which reads the input and store in the variable.

After that, calculate the number of laps by dividing the number of miles with the given one lap running track value (0.25 miles).

Number\,of\,laps = \frac{Number\,of\,miles}{0.25}

the output is stored in the variable.

After that, print the value on the screen with 2 digits after the decimal point.

we can use "%.2f" in the printing function in java.

like System.out.printf("%.2f", output);

5 0
3 years ago
Read 2 more answers
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